* Re: [9fans] Remus: High Availability via Asynchronous Virtual Machine Replication
[not found] <<e763acc10912031211y6c60b0f8ld5248c023671302b@mail.gmail.com>
@ 2009-12-04 1:38 ` erik quanstrom
0 siblings, 0 replies; 2+ messages in thread
From: erik quanstrom @ 2009-12-04 1:38 UTC (permalink / raw)
To: 9fans
On Thu Dec 3 15:13:17 EST 2009, roman@shaposhnik.org wrote:
> This appears to be an interesting way of solving an HA problem:
> http://nss.cs.ubc.ca/remus/papers/remus-nsdi08.pdf
>
> It is also different from a typical approach of checkpointing in HPC.
> One thing that I'm wondering about though is whether Plan9 architecture
> of things like /net and /dev/sd would actually allow it to be HAed in that
> fashion *without* a help of the hypervisor.
>
> Does it make sense or am I totally off base here?
i don't see why it wouldn't work with sd.
networking would be harder. since the stated goal
is to not reset tcp connections, you'd need to force the
backup to pick the same ports and starting sequence numbers
as the primary.
- erik
^ permalink raw reply [flat|nested] 2+ messages in thread
* [9fans] Remus: High Availability via Asynchronous Virtual Machine Replication
@ 2009-12-03 20:11 Roman Shaposhnik
0 siblings, 0 replies; 2+ messages in thread
From: Roman Shaposhnik @ 2009-12-03 20:11 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
This appears to be an interesting way of solving an HA problem:
http://nss.cs.ubc.ca/remus/papers/remus-nsdi08.pdf
It is also different from a typical approach of checkpointing in HPC.
One thing that I'm wondering about though is whether Plan9 architecture
of things like /net and /dev/sd would actually allow it to be HAed in that
fashion *without* a help of the hypervisor.
Does it make sense or am I totally off base here?
Thanks,
Roman.
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <<e763acc10912031211y6c60b0f8ld5248c023671302b@mail.gmail.com>
2009-12-04 1:38 ` [9fans] Remus: High Availability via Asynchronous Virtual Machine Replication erik quanstrom
2009-12-03 20:11 Roman Shaposhnik
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